Table 1 Cervical mobility indicators to predict difficult laryngoscopy between the two groups of patients undergoing cervical spine surgery
Items | Easy laryngoscopy group (n = 230) | Difficult laryngoscopy group (n = 40) | Statistical Test | P-values |
|---|---|---|---|---|
BMI | 25.1 ± 3.3 | 25.7 ± 2.5 | t=-1.127 | 0.261 |
MMT (class I-II/class III-IV) | 149(64.8)/81(35.2) | 19(47.5)/21(52.5) | χ2 = 4.33 | 0.037 |
HMDn (cm) | 5.4 ± 0.8 | 5.3 ± 0.9 | t = 0.777 | 0.438 |
HMDe (cm) | 6.6 ± 1.0 | 6.5 ± 0.8 | t = 1.073 | 0.285 |
HMDR | 1.21 (0.19) | 1.22 (0.13) | z=-0.382 | 0.703 |
C0C1Dn (mm) | 6.7 ± 2.6 | 6.4 ± 3.1 | t = 0.665 | 0.507 |
C0C1De (mm) | 0.6 ± 0.3 | 0.5 ± 0.3 | t = 1.249 | 0.213 |
C0C1DR | 12.14 (10.29) | 13.70 (10.10) | z = 0.490 | 0.624 |
C1C2Dn (mm) | 4.6 (2.5) | 5.0 (4.3) | z = 1.113 | 0.266 |
C1C2De (mm) | 0.5 (0.3) | 0.6 (0.3) | z = 1.087 | 0.277 |
C1C2DR | 8.88 (5.36) | 8.96 (6.51) | z = 0.259 | 0.796 |
C 2 C 6 An (°) | 9.0 (12.0) | 13.5 (10.9) | z = 2.484 | 0.013 |
C2C6Ae (°) | 16.7 (13.6) | 17.6 (16.1) | z=-0.572 | 0.568 |
C 2 C 6 AR | 1.80 (2.25) | 1.26 (0.56) | z=-4.127 | < 0.001 |